Construction / Code Official License / Kentucky
- Kentucky
- Code Official
- Building, Electrical & Mechanical
- Updated Oct 2026
How to Get Your Kentucky Code Official License
Kentucky certifies building, electrical and mechanical inspectors and plan reviewers. This page covers every class, the NCPCCI exams each one needs and how to apply.
Last updated October 28, 2026 from Kentucky Department of Housing, Building and Construction requirements
Application fee
Not stated
Contact the state at (502) 573-2002
Exam time
2–3.5 hrs
Per exam, open book
Time to get license
~4–8 yrs
Electrical experience; other classes not stated
Continuing ed
Not stated
State CE hours not given in the source
Overview
Do you need a Kentucky code official license?
Yes, if you inspect or review plans for building, electrical or mechanical work in Kentucky. Each class has its own NCPCCI exams, and electrical inspectors also need years of hands-on wiring experience.
License required when
- You inspect buildings for compliance with the Kentucky Building Code
- You review building or mechanical plans and specifications
- You inspect electrical installations under the National Electrical Code (NFPA 70)
- You inspect HVAC, ductwork, boilers and other systems under the Kentucky Mechanical Code
Common exceptions
- Inspectors who only work on one- and two-family dwellings take the residential exams, not the general ones
- Electrical inspectors don’t take the building or mechanical exams, and vice versa
Working without certification
The source doesn’t list penalties. The state can take disciplinary action against anyone inspecting without the right certification or outside their class, so get certified before you inspect.
Your fast-track Kentucky code official license checklist
The Kentucky application, one page
- Completed application
- Proof of experience (4 or 8 yrs for electrical)
- Passing NCPCCI exam results
- Application fee
- Photograph
- Proof of bond (electrical)
Types
Kentucky code official license types and classifications
Kentucky splits inspectors by trade and by building type. Each building inspector level has its own exam list, so confirm with the state whether higher levels also need the lower-level exams.
BI-1
Entry level
Building Inspector Level 1
Inspects buildings at each stage of construction for structural, fire and accessibility compliance.
Exam
1A, 1B, 3B, 4A
Limit
Level 1 work
BI-2
Adds mechanical
Building Inspector Level 2
Adds general mechanical inspection to building inspection work.
Exam
4B
Limit
Level 2 work
BI-3
Plan review
Building Inspector Level 3
Adds building, fire protection and mechanical plan review.
Exam
1C, 3C, 4C
Limit
Inspection and plan review
1&2
Residential
One- and Two-Family Dwelling Inspector
Inspects one- and two-family homes only.
Exam
Not stated
Limit
1- and 2-family dwellings
E1
Residential
Electrical Inspector One- and Two-Family
Inspects wiring, grounding, overcurrent protection and service equipment in one- and two-family homes.
Exam
E1, 70% to pass
Limit
1- and 2-family dwellings
E2
All buildings
Electrical Inspector General
Inspects electrical installations in residential, commercial and industrial buildings.
Exam
E2, 70% to pass
Limit
Statewide, all occupancies
4A/4B
Mechanical
Mechanical Inspector
Inspects HVAC, ductwork, boilers, piping and fuel systems. 4A covers homes, 4B covers general work.
Exam
4A or 4B
Limit
By exam passed
4C
Plan review
Mechanical Plan Reviewer
Reviews mechanical plans and specifications for code compliance.
Exam
4C
Limit
Mechanical plan review
Requirements
Kentucky code official license requirements, class by class
Each trade has its own exams. Only the electrical classes list a set amount of experience.
| Requirement | Building (Levels 1–3) | Electrical (E1 / General) | Mechanical |
|---|---|---|---|
| Exams | L1: 1A, 1B, 3B, 4A · L2: 4B · L3: 1C, 3C, 4C | E1 or E2 | 4A, 4B, 4C |
| Passing score | Not stated | 70% | 70% (4A) |
| Experience | Not stated | 4 yrs residential / 8 yrs general | Not stated |
| Exam format | Open book | Open book | Open book |
| Bond | Not stated | Proof of bond | Not stated |
| Photo with application | Not stated | Required | Not stated |
Steps
How to get your Kentucky code official license, step by step
- Pick your classBefore you start
Decide whether you’re going for building, electrical or mechanical, and whether you’ll stick to one- and two-family homes or cover all buildings. - Build your experience4–8 yrs (electrical)
Electrical inspectors need 4 years of residential wiring experience for the one- and two-family class, or 8 years of residential, commercial and industrial for General. - Submit your exam applicationBefore the exam
Send the state your application with verified education and experience. Once approved, you’ll get an exam bulletin. Call (502) 573-2002 or visit kentucky.gov. - Pass your NCPCCI examsExam day
Building and mechanical exams are listed with PSI. The electrical bulletin is on Prov, which also offers online proctoring. - Apply for certificationAfter you pass
Send your application, exam results, fee, proof of experience, a photo and, for electrical, proof of bond. - Keep your scope in mindOngoing
Only inspect work your class covers. To move up a building level, pass the exams listed for that level.
Exam
What to expect on the Kentucky code official exam
Kentucky uses NCPCCI inspector exams. They’re open book, and you can tab and highlight your references.
Format
Open book
Questions
50–80 per exam
Passing score
70%
Exam vendor
PSI / Prov
Scoring & content
- E1 Residential Electrical: 60 questions, 2 hours
- E2 Commercial Electrical: 80 questions, 3.5 hours
- 4A Mechanical One- and Two-Family: 50 questions, 2 hours, 70% to pass
- 4B and 4C cover air distribution, piping, appliances, venting and fuel systems
- References can be tabbed and highlighted
Retake policy
- Not stated in the source
- Check the exam bulletin you receive after approval
- Online proctoring is available for Prov exams
Exam references · Open book
Kentucky’s inspector and plan reviewer exams are open book, and the approved references can be tabbed and highlighted. The list covers the building (1A, 1B, 3B/3C), mechanical (4A, 4B, 4C) and electrical (E1, E2) inspector exams.
| Book | Edition | Use |
|---|---|---|
| International Residential Code (IRC) — 1A, 4A and E1 exams | 2021 | Allowed in exam |
| International Building Code (IBC) — 1B Building Inspector General exam | 2021 | Allowed in exam |
| NFPA 13: Standard for the Installation of Sprinkler Systems — 3B/3C Fire Protection exams | 2019 | Allowed in exam |
| NFPA 72: National Fire Alarm and Signaling Code — 3B/3C Fire Protection exams | 2019 | Allowed in exam |
| International Mechanical Code (IMC) — 4B/4C Mechanical exams | 2021 | Allowed in exam |
| International Fuel Gas Code (IFGC) — 4B/4C Mechanical exams | 2021 | Allowed in exam |
| NFPA 70: National Electrical Code (NEC) — E1 and E2 Electrical exams | 2023, 2020 or 2017 (match your exam’s edition) | Allowed in exam |
| Ugly’s Electrical References — E1 Residential Electrical exam | 2023 | Allowed in exam |
Our sources list the 2024 IRC and 2023 NEC for the E1 exam in one place and the 2021 IRC and 2020 NEC in another, so confirm the edition in your candidate bulletin.
Prep
Best Kentucky code official exam prep, compared
We haven’t compared prep courses for this exam yet.
Costs
How much does a Kentucky code official license cost?
| Item | Type | Estimate |
|---|---|---|
| Application fee | Fixed | Not stated |
| NCPCCI exam (each) | Fixed | Not stated |
| Bond (electrical) | Variable | Not stated |
| Code books (IRC, IBC, IMC, IFGC, NEC, NFPA) | Variable | Varies |
| Application and exams | Fees not published in the source | Not stated |
Each class needs its own exams, so budget for every one you take.
Reciprocity
Does Kentucky accept out-of-state code official licenses?
The source doesn’t describe any reciprocity for Kentucky inspectors.
No reciprocity agreements
None are stated. Plan to apply as a new applicant and pass the NCPCCI exams for your class.
Local
Do Kentucky cities and counties have their own code official licensing rules?
The state certifies inspectors. Local governments hire them and run permits and inspections.
State handles
- Inspector and plan reviewer certification
- Approving exam applications
- Setting exam and experience requirements
- Kentucky Building Code and Mechanical Code
City & county handle
- Hiring inspectors
- Permits and inspections
- Local building and fire codes the inspector must know
Governance
Who regulates code officials in Kentucky
Licensing authority
Kentucky Department of Housing, Building and Construction
(502) 573-2002
Oversight responsibilities
- Certifies building, electrical and mechanical inspectors and plan reviewers
- Approves exam applications
- Enforces the Kentucky Building Code and Mechanical Code
- Sets experience and bond requirements
Maintenance
How to renew your Kentucky code official license and keep it active
The source doesn’t give Kentucky’s renewal cycle or state CE hours. If you hold an IAEI electrical certification, IAEI separately requires 24 hours of continuing education every 3 years.
Renewal cycle
Not stated
CE hours
Not stated
Renewal fee
Not stated
Late penalty
Not stated
Renewing your license?
See the Kentucky CE guide: hours, deadline, required topics and how to renew.
FAQ
Kentucky code official license FAQs
What exams do Kentucky building inspectors take?
Level 1 lists 1A, 1B, 3B and 4A. Level 2 lists 4B, and Level 3 lists the plan review exams 1C, 3C and 4C.
How much experience do electrical inspectors need?
4 years of residential wiring experience for the one- and two-family class, or 8 years of residential, commercial and industrial for Electrical Inspector General.
What score do I need to pass?
70% on the electrical exams and the 4A mechanical exam.
Are the inspector exams open book?
Yes. You can tab and highlight your references.
Who runs the exams?
Building and mechanical exams are listed with PSI. The electrical exam bulletin is published by Prov, which also offers online proctoring.
Do electrical inspectors need a bond?
Yes. Proof of bond is part of the electrical inspector application, along with a photo, experience and exam results.
Sources
Official sources for the Kentucky code official license
- Commonwealth of Kentucky, kentucky.gov
- PSI, Kentucky inspector exam catalog
- Prov, NCPCCI Examination Information Bulletin (PDF)
- Kentucky Building Code
- Kentucky Mechanical Code
- NFPA 70, National Electrical Code
Last updated October 28, 2026. Spot something out of date? Tell us.
Exam Insiders is an independent guide and is not affiliated with the Kentucky Department of Housing, Building and Construction.